PAT - Quartz Results Compared to Others
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The PAT program was initiated to certify and facilitate performance in
industrial hygiene analytical laboratories. When examining how the precision
improved over time for quartz, one may wonder how this compares to other
analytes in the Program. As shown, labs recently analyzing organic compounds
such as trichloroethylene (TCE) and inorganic substances such as lead display
good precision (less than 5% CV). Rounds 113 and 114 did not include TCE. Recent
data for quartz and asbestos still indicate higher imprecision or more
disagreement amongst labs.
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